obtained other specimens of this species in Ecuador, in 
the forests of Pacayurcu, above Zaruma, also above 
Ayabamba and Paccha, at from 4,500-6,800 feet above 
sea-level. Though never a common species in cultiva- 
tion, it is usually present in representative collections 
of Orchidaceous plants. The figure here given has been 
prepared from an example which flowered in the Royal 
Botanic Garden, Glasnevin, in March, 1917. 
This plant, Sir F. Moore informs us, was presented to 
the Glasnevin collection by Sir Jeremiah Colman, in 1908, 
who had grown it at Gatton Park as an unnamed Odonto- 
glossum. The species thrives under the treatment for 
cool-house orchids, a minimum night temperature of 
50° F. in winter, with cool airy conditions in summer. 
A more slender plant in every way than the familiar 
O. crispum, Lindl., from New Grenada, O. cristatum 
makes finer and more delicate roots, so that care should 
be taken that the potting material is not too coarse. 
There is at Glasnevin another example of O. cristatum, 
obtained in 1893 from Mr. Cowan, of Gateacre, which 
was identified at Kew on its first flowering in 1894. 
The nearest ally of O. cristatum is O. Hallii, Lindl., 
another Ecuador Odontoglossum, which has been already 
figured at t. 6237 of this work. 
Description.—Herb, epiphytic. Pseudobulbs elliptic- or ovate-oblong, com- 
pressed, slightly striate, 24-2 in. long, 3-14 in. wide, 2-foliate at the apex, 
4-foliate at the base. Leaves lorate, slightly curved, rather acute, 6-9 in. long, 
%2 in. wide, conduplicate below. Scapes axillary, curved, 10-14 in. long ; 
racemes laxly many-flowered ; bracts ovate-oblong, rather acute, conduplicate, 
3-2 in. long, concave ; pedicels about Zin. long. Flowers showy. Sepals and 
petals spreading, elliptic-lanceolate, acuminate, 1-11 in. long, yellow with brown 
spots and flushed with brown towards the tips. Lip clawed ; claw erect, narrow, 
about in. long; limb spreading, ovate or somewhat pandurately ovate, acute 
or acuminate, irregularly fimbriate, about 2in. long, with a large palmately 
lobed basal crest. Column curved, nearly 3 in. long ; wings rounded, irregularly 
fimbriate ; pollinia 2, pyriform ; stipe linear-oblong, somewhat incurved ; gland 
oblong, 
TaB 8809.—Fig. 1, lip; 2, column; 3, pollinarium, seen from behind ; 
4, the same, seen from in front :—all enlarged. 
